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◎ Rubber Injection Molding Machine

lsr injection molding machine Liquid Silicon Rubber LSR Injection Molding Machine

Liquid Silicon Rubber LSR Injection Molding Machine

What is Liquid Silicone Rubber?

Liquid silicone rubber (LSR) is very low viscosity silicone that can be injection molded or cast into silicone rubber sheets. "Liquid" is explicit in the name to differentiate LSRs from high consistency gum based silicone products. LSRs are addition cure / platinum cure systems. In its raw uncured form, LSR is two parts liquid that are mixed together (mixing of Part A and Part B starts the curing) and heated to accelerate the curing process.  LSRs are generally injection molded or cast . Note that injection molding of liquid silicone rubber is the inverse of molding thermoplastics; room temperature liquid silicone compound is injected into and cured in a hot mold.

LSR at a Glance :

• Wide hardness range of 10 to 80 durometer Shore A

• Wide operating temperature (-58°F to 392°F)

• Excellent UV and ozone resistance

• Excellent electrical insulation

• Excellent for outdoor environmental sealing

• Good choice for submerged sealing (IP67 and NEMA 6)

• Good material for low temperature cushioning (cold drop test)

• Custom molded components, sheets and continuous cast sheets

• Many available standard colors and custom colors for molded parts and molded sheets

• Fast prototyping - LSR sheet / waterjet cut parts

• Available with adhesive b


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▪ Vertical clamping and injection design, especially suitable for the insert molding production Plastic Injection Molding MACHINE, SMALL VERTICAL INJECTION MOLDING MACHINE

▪ Dual sliding platen, effective to increase production flexibility and machine safety factor liquid silicone rubber molding,lsr injection molding machine

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▪ High-rigid frame structure assures stable and smooth sliding movement

Model No. ST55S-LSR(Single Slide)



Screw Diameter mm 28 32 36
Theoretical Injection Volume cm3 86 112.5 142.4
Max.Injection Pressure Mpa(kgf/cm2) 153(1563) 162(1661) 127(1313)
Injection Rate cm3/s 88 83 105
Injection Speed mm/s 103
Screw Speed Rotation r.p.m 0-240
Nozzle Out From Platens mm ≥45



Clamping Force KN(tf) 539(55)
Clamping Stroke mm 200
Min.Mold Thickness mm 120(200)
Max.Opening mm 320(400)
Distance Between Tie Bars mm 445*255 ---
Max.Mould Size mm 380*376 380*376 300*300
Platen/Slide Size mm 500*396 890*396 880
Ejector Distance mm 70 70 70
Ejector Force KN(tf) 21.5(2.2) 26.5(2.7) 26.5(2.7)
Others System Pressure Mpa(kgf/cm2) 13.7(140) 13.7(140) 13.7(140)
Oil Tank Capacity L 140 180 230
Electric Power KW(HP) 7.5(10) 11(15) 11(15)
Machine Dimensions L*W mm 2016*1265 1650*1380 1755*1598
H mm 2465(3110) 2460(3105) 2560(3205)
Machine Weight tf 1.8 2.2 2.

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